2nd Spigen hull bought, never disappointed with the quality. The hull is perfectly suited to the iPhone and does not alter the design (unlike the neo-hybrid). It covers very well the contours of the iPhone and operation buttons is unchanged. The plastic is of good quality and looks solid. For my part, I have not found that particularly iphone slipped in hand with the shell. Finally, the shell does not affect access to the audio jack, no problems with my headphones jack marshall